*{
    padding: 0;
    margin: 0;
}
#father{
    width: 500px;
    height: 500px;
    border: 1px solid #ccc;
    margin-left: 100px;
    position: absolute;
    }
 #fathers{
    width: 500px;
    height: 500px;
    border: 1px solid #ccc;
    margin-left: 100px;
    position: absolute;
    background: url(timg.jpg);
    background-size: 100% 100% ;
}
#fathers .son{
    position: absolute;
    background: rgba(112,112,344,.3);
}
#father .son{
    background: rgba(112,112,344,.3);
    position: absolute;
}
